LARGE ENHANCEMENT OF POLARIZATION OBSERVED BY EXTRACTED ELECTRONS FROM THE ALGAAS-GAAS SUPERLATTICE

被引：51

作者：

OMORI, T

KURIHARA, Y

NAKANISHI, T

AOYAGI, H

BABA, T

FURUYA, T

ITOGA, K

MIZUTA, M

NAKAMURA, S

TAKEUCHI, Y

TSUBATA, M

YOSHIOKA, M

机构：

[1] NAGOYA UNIV,FAC SCI,CHIKUSA KU,NAGOYA,AICHI 406,JAPAN

[2] NEC CORP LTD,FUNDAMENTAL RES LABS,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.67.3294

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed a large enhancement of the spin polarization of electrons extracted from an AlGaAs-GaAs superlattice illuminated by circularly polarized light. A polarization of 71.2 +/- 1.1 (stat) +/- 6.1 (syst)% was obtained with a photon wavelength of 802 nm at room temperature. We have also confirmed the removal of the degeneracy between a heavy-hole band and a light-hole band at the GAMMA-point from the laser-wavelength dependence of the polarization.

引用

页码：3294 / 3297

页数：4

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